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Title: Regional geology and petroleum potential of the United State Chukchi shelf north of Point Hope

Journal Article · · United States Geological Survey, Professional Paper; (USA)
OSTI ID:7129146

An extensive frontier terrain that is prospective for petroleum but is as yet incompletely explored and entirely untested underlies the United States Chukchi shelf north of Point Hope. The area is in most places underlain by a thick section of sedimentary rocks prospective for oil and gas, and it contains diverse geologic structures and stratigraphic features that may have trapped hydrocarbon fluids. The prospective sedimentary section includes every geologic system from the Carboniferous to the Tertiary and includes several formations that contain petroleum deposits or strong shows of oil or gas on parts of the North Slope of Alaska. These formations have proved disappointing, however, where tested in a few exploratory wells in the western part of the National Petroleum Reserve in Alaska (NPRA), an area that lies adjacent to the Chukchi shelf. The data base consists mainly of the U.S. Geological Survey (USGS) multichannel seismic-reflection profiles and accompanying high-resolution seismic-reflection profiles shown in figure 10.1 and some additional USGS single-channel seismic-reflection profiles, sonobuoy refraction measurements, and seabed samples. The multichannel seismic profiles, on which the interpretations presented here are mainly based, are mostly 30 to 90 km apart, with typical line spacings of 40 to 50 km. Ice conditions during data acquisition were such, however, that profile coverage in the northern and northwestern parts of the Chukchi Sea is sparse. Because of the wide spacing and irregular distribution of the profiles, the interpretations are reconnaissance in character. Some of the profiles, particularly in the southwestern part of the study area, are affected by strong artifacts that further limit their usefulness for geologic interpretation and resource assessment.

OSTI ID:
7129146
Journal Information:
United States Geological Survey, Professional Paper; (USA), Journal Name: United States Geological Survey, Professional Paper; (USA)
Country of Publication:
United States
Language:
English